log2(6)-log4(9)=?? dengan mengubah basis

[tex] {}^{2} log(6) - {}^{4} log(9) \\ = {}^{2} log(6) - {}^{2 {}^{2} } log(3 {}^{2} ) \\ = {}^{2} log(6) - {}^{2} log(3) \\ = {}^{2} log(2) \\ = 1[/tex]